Students the use of tele



D. W. PUTT. APPARATUS FOR TEACHING STUDENTS THE USB or TELEGRAPHIO INSTRUMENTS.

No. 103,654. Patented May 31, 1870.

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DANIEL W. PUTT, or WELLSVILLE, OHIO, ASSIGNOR TO HIMSELF, WALTER c. BROWNSON, AND PHILIP BREWER, 0F SAME PLACE.

Letters Patent No. 103,654, dated May 31,1870.

MROVEMENT m APPARATUS m; TEACHING- s 'rnmsuws was use or TELE- GRAPHIC INSTRUMENTS.

The Schedule referred to in these Letters Patent and making part of the same.

I, DANIEL W. Form, of Wellsville, in the county of Columbiana and State of Ohio, have invented anew and useful Mechanical Telegraph Apparatus for Students, of. which the following is a. specification .My invention relates to thecombination of sounding mechanism with an ordinary telegraph-key, for, the purpose'of producing, by the. operation of the key in the usual manner, all thesound signalsof magnetoelectric telegraph apparatus, without'the' use of mag- Figure 2,ia"tr ansverse section in the lineai'x of fig;

1, illustrating the mechanical contrivancewhereby the sounder is made to operate.

' Figures 3,-4, '5 ,and 6 are diagrams in elevation, illustratingyarious modifications in the construction and arrangement of my ap arat-us, fig 6 representing one of its simplest forms, t e ordinary "sounder being dispensed with, and a key alone. employed.

A, figs. 1 and 2, is a regular telegraphic key, of any approved formand construction.-

B,.a regular telegraphic sounder-instrument,likewise of the ordinary appr'oyed form..

- C, a board upon which the key and sounder are secured, side by side, in the usual manner, as vfor use upon a telegraphic circuit, which forms the top of a hollow stand or casing,-'concealing the operating lever 0f the apparatus.

D, a lever pivotedat one end of the board 0, on its under side, and extending thence diagonally across under the long arm of the key, to .a point under the sounder, near its pivot-axis, as illustrated by dotted lines in fig. 1.

' E, fig. 2, is a link connecting the sounder-lever with the free ,end of the lever D, and

lever.

The sounder-lever B (and with it the end oflits attached operating lever D) 'is upheld by means of a spring, G, attached thereto in the usual manner.

By pressure upon the key A the lever D is forced down, carrying with it' the souuder-lever B, which, so soon as pressure is removed from the key, will be thrown up again by t-he spring Gin the usual manner.

F, fig. 2, a rod connecting the key with the same I The tensionjot this spring is adjusted by means of a set-screw, H, and" the movements of' the sound! er-lever controlled by a set-screw, K, as in ordinary instrument's.

i The apparatus presents outwardly the: appearance of an ordinary telegraphic apparatus, and, by the sub stitution of a lever,-O,for the magnets and electric. circuitsof a telegraph, precisely the same movements of the sounder are obtained by the operation of the key in the one as iii-the other, and a student may learnand practice signals upon the one'with as great facility and case, and to'the same advantageas upon the other.

Diagram fig. 3 represents' the key and sounder, placed in ajsomewliat' different position upon'the' board, to accommodate them to a change in the ar: rangement and combination of the operative lever therewith.

I-n thisappa'ratus the lever is pivoted at one end as before, to the under'sideof the board'C, ands-o placed as that its free end shall extend to a point heneath the key. A, to which it, is' connected by a rod, F.

The sounder B is also connected thereto centrally by a link, E;

The operation of this form of apparatus isthev same as in 'the apparatus shown in figs; 1 and 2,

change being made 'simply in the arrangement and combination of the operative lever D.

Fig. 4 illustrates a form of my apparatus-in which the employment of a concealed lever, O,'is"dispensed with, one end of the keyA being made 'to' pass under the sounder B, so as to be connected directly thereto by a link, H.

The movements of the key are'thus communicated directly to the sounder.

Fig. 5 ilhmtrates a modification of the apparatus shown in fig. 4, the key A' being so placed as that its end shall strike an end, I), of the sounder-lever, projecting beyond its axis, and thus impart thereto its own movement.

Fig. 6 illustrates my apparatus when so con.

structed as that the sounder shall be wholly dispensed with.

In this apparatus the key A is made to strike, by means of a connecting-rod, s, one end of a centrally-pivoted lever, and concealed in the stand .0, upon which the key isplaced, the other end' of' the lever being arranged to strike against an anvil, W, so as to produce the sound-signals under the operation of the key.. I

It is evident that. very many equivalent devices may be employed for thus operating the sounder-lever by themove peuts of the key,- or. otherwise producing the telegraphic sound-signals without themechanical appliances alone, without the use of elecaid of electric batteries and magnets, and it is not tric batteries or magnets.

necessary that I shall enumerate thembere. Witness myhand to this specification this 9th day I claim as my intentionof March, 1870. A telegraphic-signal apparatus for students use, o D. WJPUTT.

operated by a telegraphic key of the ordinary form, Witnesses;

and constructed and arranged substantially as herein J. FISHER,

set forth, to produce the telegraphic sound-signals by W; H. RILEY. 

